diff --git a/.github/workflows/auto-ff-matrix-pilot-sync.yml b/.github/workflows/auto-ff-matrix-pilot-sync.yml
index 2f0f7cb17fd..ef286b368fa 100644
--- a/.github/workflows/auto-ff-matrix-pilot-sync.yml
+++ b/.github/workflows/auto-ff-matrix-pilot-sync.yml
@@ -11,6 +11,7 @@ on:
       - completed
 
 permissions:
+  actions: write
   contents: write
   pull-requests: write
 
@@ -126,3 +127,10 @@ jobs:
           fi
 
           git push origin "${actual_head}:refs/heads/${BASE_BRANCH}"
+
+      - name: Dispatch deployment mirror
+        if: steps.checks.outputs.ready == 'true'
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          gh workflow run mirror-to-deployment-target.yml --ref "${BASE_BRANCH}"
diff --git a/.github/workflows/mirror-to-deployment-target.yml b/.github/workflows/mirror-to-deployment-target.yml
index 6fa4274db01..5504cfab959 100644
--- a/.github/workflows/mirror-to-deployment-target.yml
+++ b/.github/workflows/mirror-to-deployment-target.yml
@@ -1,6 +1,7 @@
 name: Mirror to deployment target
 
 on:
+  workflow_dispatch:
   push:
     branches:
       - native-matrix-channel-pilot
diff --git a/scripts/test-auto-ff-matrix-pilot-sync-workflow.sh b/scripts/test-auto-ff-matrix-pilot-sync-workflow.sh
new file mode 100755
index 00000000000..5bd75b715c5
--- /dev/null
+++ b/scripts/test-auto-ff-matrix-pilot-sync-workflow.sh
@@ -0,0 +1,41 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+cd "$(dirname "$0")/.."
+
+workflow=".github/workflows/auto-ff-matrix-pilot-sync.yml"
+mirror_workflow=".github/workflows/mirror-to-deployment-target.yml"
+
+if [[ ! -f "${workflow}" ]]; then
+    echo "missing ${workflow}"
+    exit 1
+fi
+
+if [[ ! -f "${mirror_workflow}" ]]; then
+    echo "missing ${mirror_workflow}"
+    exit 1
+fi
+
+require_in() {
+    local file="$1"
+    local pattern="$2"
+    local description="$3"
+    if ! grep -Eq -- "${pattern}" "${file}"; then
+        echo "missing ${description}: ${pattern}"
+        exit 1
+    fi
+}
+
+require_in "${workflow}" 'name:[[:space:]]*Auto fast-forward Matrix pilot sync' "workflow name"
+require_in "${workflow}" 'workflow_run:' "workflow-run trigger"
+require_in "${workflow}" 'actions:[[:space:]]*write' "Actions write permission for workflow dispatch"
+require_in "${workflow}" 'BASE_BRANCH:[[:space:]]*native-matrix-channel-pilot' "Matrix pilot branch"
+require_in "${workflow}" 'git push origin "\$\{actual_head\}:refs/heads/\$\{BASE_BRANCH\}"' "pilot branch fast-forward"
+require_in "${workflow}" 'name:[[:space:]]*Dispatch deployment mirror' "post-fast-forward mirror dispatch step"
+require_in "${workflow}" 'GH_TOKEN:[[:space:]]*\$\{\{ github\.token \}\}' "dispatch token"
+require_in "${workflow}" 'gh workflow run mirror-to-deployment-target\.yml --ref "\$\{BASE_BRANCH\}"' "explicit deployment mirror dispatch"
+require_in "${mirror_workflow}" 'workflow_dispatch:' "manual mirror dispatch trigger"
+require_in "${mirror_workflow}" 'branches:' "push trigger branch restriction"
+require_in "${mirror_workflow}" 'native-matrix-channel-pilot' "Matrix pilot push trigger"
+
+echo "auto-ff Matrix pilot workflow contract OK"